Rotary elastic-fluid pump.



J. PETERMOLLBR. ROTARY ELASTIC FLUID PUMP. APPLICATION FILED JULY 7, 1913. 1,107,999, Patented Aug. 18, 1914,

2 SHEETSSHEET 1.

THE NORRIS PET TRS 60., PHOTO-LITHOH WASHINGTON D. c.

J. PETERMULLER. ROTARY ELASTIC FLUID PUMP.

APPLIUATION FILED JULY 7, 1913.

Patented Aug. 18, 1914, 2 SHEETB SH'EET 2.

1560621202- u ase afi Pezermz'ller may,

- THE NORRIS PETERS COI:FHOTO-LITHDH WASHINGTON. D, C.

7 tion or inlet water with which the water passes through the. directing nozzles will be, variable. If these .into a. discharge JOSEPH PETERMOLLER, OF CATHCABT, GLASGOW, SCOTLAND.

-ROTARY ELASTIC-FLUID PUMP.

Specification of Letters Patent.

Patented Aug. 18, 1914.

Application filed July 7,1913. Serial No. 777,718.

To all whom it may concern Be it known thatl, Josnrii PETERMOLLER, a s'ub ect of the Emperor of Germany, re-

siding at Cathcart, Glasgow, Scotland, have invented certain new and useful Improvements in Rotary Elastic-Fluid Pumps; and 1" do hereby declare the following to be a full, clear, and exact description of the in- .*ention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyingdrawings, and toletters or figures of reference marked thereon, which form a part of this specification.

This inventionrelates to apparatus for exhausting or tic fluid by means of'anauxiliary liquid, such as water, which is delivered or guided by a directing nozzle or nozzles into a rotati ig turbine wheel from which it is projected nozzle or nozzles the auxdeliver the elastic iliary liquid acting to fluid into an'l through thesaid discharge.

nozzle or nozzles. The elastic fluid will hereinafter be referred to as air, and the auxiliary liquid as water.

When such apparatus is employed to withdraw the air from a vesselnndei' vacuum and to receive its'water from a' vessel under atmospheric pressure or generally when the suction air 1 pressure is variable with-respect to the sucpressurethe velocity directing nozzles are fixed, and the bucket velocity of the turbine wheel is constant, the line of discharge of water from the wheel will alter, with the velocity of the water inthe, directing nozzles. Now, if the discharge nozzles are fixed, it is necessary that the line of discharge of the water from the turbine wheel ,shouldbe approximately constant in orderI'that the watersmay 'el'l'eo tively discharge the air through these nozzles. It isthere fore necessary for maximum cfiiciency' that the position of the directing nozzles in action at any time be adjusted to suit the water velocity at that time.

Thisinvention consistsin means for at .taining thisresult and is described in the following specification in the annexed claims.

The desired result can be obtained either (1) 'by movement of the directing nozzles or (2 by providing two or more sets of directing nozzles and putting one set into compressing air or other elasand clearly defined Figs. 1 and 2 construct on.

Fig. 5 ma diagrammatic side elevation illustrating the apparatus and the In all the figures, a is the turbine wheel and Z) is the casingwhich contains it.

0, c are the nozzles which direct the water into the buckets (Z of the wheel, and e, e are the discharge nozzles.

f is a tank into which the air and water are discharged, the air leaving the apparatus by the duct gwhile the water passes throughthe tank and up the duct it into the peatedly used. 4 I v a representsthe water level in the tank and nozzle member when starting the apparatus. f j

The duct 0 is adapted to be the vessel from draw the air, and the air passes through the duct- 0 into the chamber p within the wheel.

The velocity with which the water passes through'the nozzles c'is dependent on the difference betweenthe pressure p and the pressure chamber 17. If thewheel rotates with a uniform velocity, then the variation in the velocity of the water through the nozzles 0 will determine the an connected to sion of the water to the wheel and the point of discharge of the water from the wheel, and it will also affect the angle which the line of discharge of the water makes'with the normal.

ities through the nozzles 0, it is therefore necessary to alter the position of the nozzles c. In the construction shown in Figs. 1 and 2, this is effected by either occupy the position shown by full lines in Fig. 1 or the position shown by the tion.

a, a plurality are employed which have different angular tain efiiciency with varying water velocaction at'atime and the others out of action I 42 are views corresponding respectively to and illustrate an alternative connections with the vessel being exhausted. I

interior of the nozzle member m and is rewhich it is required to within the tank f gular distance between the point of admisfrom the wheel In order to mainpartially rotating the nozzle member on so that the nozzles can dotted lines at 0,-or any intermediate posi- 1 positions; and a gate 9 is provided within of said wheel, means for situated within said-wheel, directing nozzles carried by said hollow member and adapted to direct the auxiliary liquid into the buckets of said wheel, means for supplying the auxiliary liquid to said hollow member and through it to said directing nozzles, dis charge nozzles, the said turbine wheeltbeing adapted to deliver'the elastic fluid andthe auxiliary liquid mto said discharge nozzles, and means for moving the said hollow memher in a manner to adjust the angular position of said directing nozzles.

6. A rotary elastic fluid pump employing auxiliary liquid and comprising,in combination, a turbine wheel adapted to be retated, means fo admitting elastic fluid to the buckets otsaid wheel, directing nozzles adapted to directthe auxiliary liquid into the buckets of said wheel, means for supplying the auxiliary liquid to said directing nozzles, discharge nozzles, the said turbine wheel being adapted to deliver the elastic fluid and the auxiliary liquid into said dis charge nozzles, a vessel from which theelastic fluid is to be withdrawn, and means whereby the position of the directing nozzles in action is automatically controlled by the elastic fluid pressure in said vessel.

7. A rotary elastic fluid pump employing auxiliary liquid and comprising, in combination,v a. turbne wheel adapted to be retated, means for admitting elastic fluid to the buckets of said wheel, directing nozzles situated within said wheel and adapted to direct the auxiliary liquid into the buckets supplying the auxiliary liquid to said directing'nozzles, discharge nozzles situated outside said wheel, the said turbine wheel being adapted to deliver the elastic fluid and the auxiliary liquid into said discharge nozzles, a vessel from which the elastic fluid is to be withdrawn, and means whereby the position of the directing nozzles in action is automatically controlled by the elastic fluid pressure in said vessel.

8. A rotary elastic fluid pump employing auxiliary liquid and comprising. in combination, a turbine wheel adapted to be retated, means for admitting elastic fluid to the buckets of said wheel, directing nozzles adapted to direct the auxiliary liquid into the buckets of said wheel, means for supplying the auxiliary liquid to said directing nozzles, discharge nozzles, the said turbine wheel being adapted to deliver the elastic fluid and the auxiliary liquid into said discharge nozzles, a vessel from which the elastic fluid is to be withdrawn, and means whereby the angular position of said directing nozzles is automatically adjusted by the elastic fluid pressure in said vessel.

9. A rotary elastic fluid pump employing auxiliary liquid and comprising, in combination, a turbine wheel adapted to be rotated, means for admitting elastic fluid to the buckets of said wheel, directing nozzles ituated within said wheel and adapted to direct the auxiliary liquid into the buckets of said wheel, means for supplying the auxiliary liquid to said directing nozzles, discharge nozzles situated outside said wheel, the said turbine wheel being adapted to deliver the elastic fluid and the auxiliary liquid into said discharge nozzles, a vessel from which the elastic fluid is to be withdrawn, and means whereby the angular position of said directing nozzles is automatically adjusted by the elasticfluid pressure in said vessel.

10. A rotary elastic fluid pump employing auxiliary liquid and comprising, nation, a turbine wheel adapted to boretated, means for admitting elastic fluid to the buckets of said wheel, directing nozzles adapted to direct the auxiliaryliquid into the buckets of said. wheel, means for supplying the auxiliary liquid to said directing nozzles, discharge nozzles, thesaid turbine wheel being adapted to deliver the elastic fluid and the auxiliary liquid into said discharge nozzles, a vessel from which the elastic fluid is to be withdrawn, a cylinder, a piston adapted to slide in said cylinder, a pipe communicating between said cylinder and said vessel. and adapted to allow the fluid pressure in said cylinder to act on one side of said piston, means for allowing atmosphericpressure to act on the other side of said piston, a spring adapted to act on said piston, a member adapted by an angular movement to control the position of the directing nozzles in action, and mechanism connecting said piston with said member and adapted to convert the linear motion of said piston to angular motion of said member. a

11. A rotary elastic fluid pump employing auxiliary liquid and comprising, in combination, a turbine wheel adapted to'be rotated, means for admitting elastic fluid to the buckets of said wheel, directing nozzles situated within said wheel and adapted to direct the auxiliary liquid into the buckets of said wheel, means for supplying the auxiliary liquid to said directing nozzles, discharge nozzles situatcd outside said wheel, the said turbine wheel. being adapted to deliver the elastic fluid and the auxiliary liquid into said discharge nozzles, a vessel from which the elastic fluid is to be withdrawn, a cylinder, a piston adapted to slide in said cylinder, a pipe communicating between said cylinder and said vessel and adapted to allow the fluid pressure in said cylinder to act on one side of said piston, means for allowing atmospheric pressure to act on the other side of said piston, a spring adapted to act on said piston, a member adapted by an angular movement to control the position in combii of the directing nozzles in action, and n'iechanism connecting said piston with said member and adapted to convertthe linear motion of said piston to angular motion of said member.

12. A rotary elastic fluid pump employing auxiliary liquid and con'iprising, in combination, a turbine wheel adapted to be rotated, means for admitting elastic fluid to the interior of said wheel, a hollow member situated within said wheel, directing nozzles carried by said hollow member and adapted to direct the auxiliary liquid into the buckets of said wheel, means for supplying the auxiliary liquid to said hollow member and through it to said directing nozzle, discharge nozzles, the said turbine wheel being adapted to deliver the elastic fluid and the auxiliary liquid into said discharge nozzles, a vessel from which the elastic fluid is to be withdrawn, and means whereby the angular position of said member is automatically cont-rolled by the elastic fluid pressure in said vessel.

13. A. rotary elastic :l'lu id pump employing auxiliary liquid and comprising, in combination, a turbine wheel adapted to be rotated, means for admitting elastic fluid to the interior of said wheel, a hollow member situated within said wheel, directing nozzles carried by said hollow member and adapted to direct the auxiliary liquid into the buckets of said wheel, meanstor supplying the auxiliary liquid to said hollow member and through it to said directing nozzles, discharge nozzles, tne said turbine wheel being adapted to deliver the elastic fluid and the auxiliary liquid into said discharge nozzles, a vessel. from which the elastic fluid is to be withdrawn, a cylinder, a piston adapted to slide in said cylinder, a pipe communicating between said cylinder and said vessel and adapted to allow the fluid pressure in said cylinder to act on one side of, said piston, n'leans for allowing atmospheric pressure to act on the other side of said piston, a spring adapted to act on said piston, and mechanism connecting the said hollow member with said piston and adapted to convert the linear motion of said piston to angular motion of said member.

in testimony whereof l have signed. my name to this specification in the presence of two sul'iscribing witnesses.

JGSEPH PETERIVIOLLER. lVitnesses:

JOHN RITCHIE Riel-mans, JAMES DAYTON IMRIE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

, v Washington, 1). U. 

